4y97: Difference between revisions

No edit summary
No edit summary
 
(One intermediate revision by the same user not shown)
Line 3: Line 3:
<StructureSection load='4y97' size='340' side='right'caption='[[4y97]], [[Resolution|resolution]] 2.51&Aring;' scene=''>
<StructureSection load='4y97' size='340' side='right'caption='[[4y97]], [[Resolution|resolution]] 2.51&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[4y97]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4Y97 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4Y97 FirstGlance]. <br>
<table><tr><td colspan='2'>[[4y97]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4Y97 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4Y97 FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.51&#8491;</td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">POLA2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN]), POLA1, POLA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/DNA-directed_DNA_polymerase DNA-directed DNA polymerase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.7 2.7.7.7] </span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4y97 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4y97 OCA], [https://pdbe.org/4y97 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4y97 RCSB], [https://www.ebi.ac.uk/pdbsum/4y97 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4y97 ProSAT]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4y97 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4y97 OCA], [http://pdbe.org/4y97 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4y97 RCSB], [http://www.ebi.ac.uk/pdbsum/4y97 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4y97 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/DPOA2_HUMAN DPOA2_HUMAN]] May play an essential role at the early stage of chromosomal DNA replication by coupling the polymerase alpha/primase complex to the cellular replication machinery (By similarity). [[http://www.uniprot.org/uniprot/DPOLA_HUMAN DPOLA_HUMAN]] Plays an essential role in the initiation of DNA replication. During the S phase of the cell cycle, the DNA polymerase alpha complex (composed of a catalytic subunit POLA1/p180, a regulatory subunit POLA2/p70 and two primase subunits PRIM1/p49 and PRIM2/p58) is recruited to DNA at the replicative forks via direct interactions with MCM10 and WDHD1. The primase subunit of the polymerase alpha complex initiates DNA synthesis by oligomerising short RNA primers on both leading and lagging strands. These primers are initially extended by the polymerase alpha catalytic subunit and subsequently transferred to polymerase delta and polymerase epsilon for processive synthesis on the lagging and leading strand, respectively. The reason this transfer occurs is because the polymerase alpha has limited processivity and lacks intrinsic 3' exonuclease activity for proofreading error, and therefore is not well suited for replicating long complexes.<ref>PMID:9518481</ref> 
[https://www.uniprot.org/uniprot/DPOA2_HUMAN DPOA2_HUMAN] May play an essential role at the early stage of chromosomal DNA replication by coupling the polymerase alpha/primase complex to the cellular replication machinery (By similarity).
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
Line 27: Line 26:
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: DNA-directed DNA polymerase]]
[[Category: Homo sapiens]]
[[Category: Human]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Babayeva, N D]]
[[Category: Babayeva ND]]
[[Category: Baranovskiy, A G]]
[[Category: Baranovskiy AG]]
[[Category: Gu, J]]
[[Category: Gu J]]
[[Category: Suwa, Y]]
[[Category: Suwa Y]]
[[Category: Tahirov, T H]]
[[Category: Tahirov TH]]
[[Category: Human dna polymerase alpha]]
[[Category: Transferase]]

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

OCA